{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "11.2.16"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "a310ff00d4f699cf0ae687573f43b69ad9906cdb"
            },
            {
              "fixed": "4e7a727c3b8d8e2ad020d3b4f982a6d085dbecdd"
            }
          ],
          "repo": "https://github.com/utmstack/utmstack",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82042.json"
  },
  "details": "UTMStack before 11.2.16 contains an authentication bypass vulnerability that allows remote attackers to gain full administrative API access by presenting a valid Utm-Internal-Key header matching the INTERNAL_KEY environment variable value, which the InternalApiKeyFilter accepts for any endpoint without path restriction, constant-time comparison, rate limiting, or audit logging. Attackers who obtain the key value can authenticate without a user account or JWT to create accounts, manage users, exfiltrate data, and modify security rules.",
  "id": "CVE-2026-82042",
  "modified": "2026-10-05T02:30:22.635760996Z",
  "published": "2026-10-02T20:15:27.035Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82042.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/UTMStack/UTMStack/releases/tag/v11.2.16"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82042"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/utmstack-authentication-bypass-via-internalapikeyfilter"
    },
    {
      "type": "FIX",
      "url": "https://github.com/utmstack/UTMStack/commit/4e7a727c3b8d8e2ad020d3b4f982a6d085dbecdd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/utmstack/UTMStack"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "UTMStack \u003c 11.2.16 Authentication Bypass via InternalApiKeyFilter"
}